US4600461A - Method of extruding a foamed thermoplastic core and extruding and integrally sealing a non-porous skin thereon - Google Patents

Method of extruding a foamed thermoplastic core and extruding and integrally sealing a non-porous skin thereon Download PDF

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Publication number
US4600461A
US4600461A US06/531,415 US53141583A US4600461A US 4600461 A US4600461 A US 4600461A US 53141583 A US53141583 A US 53141583A US 4600461 A US4600461 A US 4600461A
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US
United States
Prior art keywords
thermoplastic material
porous
film
cellular core
die
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US06/531,415
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English (en)
Inventor
Robert R. Guy
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lof Plastics Inc
Eaton Inoac Co
Original Assignee
Lof Plastics Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lof Plastics Inc filed Critical Lof Plastics Inc
Priority to US06/531,415 priority Critical patent/US4600461A/en
Assigned to LOF PLASTICS INC., TROY, MI A CORP. reassignment LOF PLASTICS INC., TROY, MI A CORP. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: GUY, ROBERT R.
Priority to CA000461957A priority patent/CA1231213A/en
Priority to AU32500/84A priority patent/AU577799B2/en
Priority to GB08421825A priority patent/GB2146941B/en
Priority to DE19843432959 priority patent/DE3432959A1/de
Priority to JP59190457A priority patent/JPS6089341A/ja
Priority to ES535805A priority patent/ES8600116A1/es
Priority to FR848413912A priority patent/FR2551694B1/fr
Priority to KR1019840005549A priority patent/KR920003061B1/ko
Priority to US06/884,101 priority patent/US4808450A/en
Publication of US4600461A publication Critical patent/US4600461A/en
Application granted granted Critical
Assigned to AEROQUIP INOAC COMPANY reassignment AEROQUIP INOAC COMPANY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: AEROQUIP CORPORATION
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B29C44/32—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements
    • B29C44/321—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements the preformed part being a lining, e.g. a film or a support lining
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
    • B29C44/50—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying
    • B29C44/505—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying extruding the compound through a flat die
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/56—After-treatment of articles, e.g. for altering the shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0013—Extrusion moulding in several steps, i.e. components merging outside the die
    • B29C48/0014—Extrusion moulding in several steps, i.e. components merging outside the die producing flat articles having components brought in contact outside the extrusion die
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/065—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/06—PVC, i.e. polyvinylchloride
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/58—Upholstery or cushions, e.g. vehicle upholstery or interior padding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/0221—Vinyl resin
    • B32B2266/0235—Vinyl halide, e.g. PVC, PVDC, PVF, PVDF
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/412—Transparent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles

Definitions

  • thermoplastic melt material contains a blowing agent which causes the melt material to foam and expand as the melt material emerges from an extruder die.
  • the extruder die is constructed to produce a foamed thermoplastic material having a cross-sectional profile which is an approximation of the desired cross-sectional profile.
  • the foamed thermoplastic material is then fed through a sizer which shapes the foamed thermoplastic material into a product having the desired cross-sectional profile. While this technique is typically capable of producing a foamed thermoplastic product having a uniform distribution of cells of the desired size, the resulting skin tends to be rather porous.
  • the controlled foam extrusion process consists of extruding a foamable thermoplastic melt material uniformly containing a blowing agent through a specially designed extruder die and into a cooled shaper which is adjacent the die.
  • the shaper is provided with a longitudinally extending cooled internal metal surface adapted to form the desired cross-sectional shape in the extruded melt material.
  • the extruder die can be designed to produce extruded foam products having a solid skin along one portion of the outer surface of the product and a cellular portion along the remaining portion of the outer surface.
  • the outer integral skin is formed about the inner cellular core by rapidly cooling a portion of the extruded melt material prior to the reaction of the blowing agent.
  • an outer portion of the melt material contacts the cooled innner metal surface of the shaper and is pressed against this cooled surface by the expansion of the remaining inner portion of the melt.
  • the cooled inner surface of the shaper is maintained at a temperature which enables the melt material in contact therewith to be cooled to a temperature below the blowing temperature of the melt material, thereby preventing expansion of this portion of the melt material to produce an outer, integral skin.
  • the thickness of the skin produced by this process corresponds to the depth in the melt material which is cooled to a temperature lower than the blowing temperature prior to the reaction of the blowing agent.
  • the present invention concerns an apparatus and process for producing an extruded thermoplastic material product having a foamed cellular core and a non-porous, integral skin.
  • a foamable thermoplastic material having a blowing agent therein is extruded through a first or core die outlet. Upon exiting the first die outlet, the blowing agent reacts to form a foamed thermoplastic material.
  • a skin or film of non-porous thermoplastic material which is free of all blowing agents is applied along at least one side of the extruded foamed thermoplastic material.
  • the shaped plastic material From the forming die, the shaped plastic material enters a cooling station such as a water tank, for example.
  • a cooling station such as a water tank, for example.
  • the plastic material can be pulled through the extrusion process by conventional means such as a pair of endless belts, for example.
  • novel product manufactured according to the process of the present invention can advantageously be used, for example, as a molding and is particularly adapted for use as a protective side molding which is attached to a vehicle body.
  • FIG. 1 is a schematic diagram representing the extrusion process of the present invention
  • FIG. 2 is a typical cross-sectional view through the novel extruded product produced by the process shown in FIG. 1;
  • FIG. 3 is an elevational view taken along the line 3--3 of FIG. 1 (without, however, depicting the extruded product) illustrating the front of the forming rolls.
  • FIG. 1 there is shown a schematic diagram which illustrates an extrusion system 10 of the present invention.
  • the system 10 includes a conventional first extrusion machine 12 having an outer housing 12a and an inner rotatable extrusion screw 12b.
  • a foamable thermoplastic material 13 having a blowing agent blended therein is contained within the housing 12a.
  • a profile die 14 is mounted adjacent the outlet of the extruder 12 for shaping the foamable thermoplastic material 13 which is driven through the die 14 by the screw 12b. As the foamable thermoplastic material 13 exits the die 14, the blowing agent therein reacts to expand the material into a foamed thermoplastic material 16.
  • a second extrusion machine 18 having an outlet die 18a positioned adjacent the profile die 14 is adapted to apply a non-pigmented or pigmented film of a non-porous thermoplastic material 20 along a portion of the surface of the foamed material 16 produced by the extruder 12.
  • a forming die 22 consisting of power driven forming rollers 22a and 22b is located following the extruders 12 and 18 and is adapted to shape and integrally seal the extruded materials 16 and 20 into a unitary product 24 having the desired cross-sectional shape.
  • the forming die 22 is provided with cooling means 26 for cooling the product 24 during the forming operation.
  • a typical cross section of the extruded product 24 after it has been shaped by the forming die 22 is shown in FIG.
  • the product 24 includes an inner cellular core 24a formed from the foamed material 16 and an integral non-porous skin 24b formed from the non-porous material 20.
  • the film of non-porous, i.e., unfoamed, thermoplastic material 20 can be clear or translucent, while the underlying foamed material 16 can be pigmented to produce the selected color.
  • the non-porous thermoplastic material 20 can be opaque and pigmented to the desired color, such that the underlying foamed material 16 can be unpigmented or any random color.
  • a roller assembly 27 provides a supply of a decorative film 27a which can be applied along selected portions of the foamed material 16 by suitable guide means (not shown in the drawings) prior to the applicationn of the non-porous material 20.
  • the decorative film 27a can be a colored or vacuum metalized Mylar® strip, for example.
  • the decorative film 27a is shown in FIG. 2 as two individual portions 24c.
  • a grain or texture can be formed in selected portions of the outer non-porous film 20 by means of the forming rolls 22.
  • the central portion 22c of the upper rolls 22a is provided with a textured surface corresponding to the desired texture to be formed along a central portion 24d (shown in FIG. 2) of the non-porous skin 24b.
  • the extruded product 24 After the extruded product 24 has been molded into the desired size and shape by the forming die 22, the extruded product 24 enters a cooling system such as a water tank 28.
  • the extruded product 24 can be pulled through the system by conventional means such as a pair of endless belts 30 driven in synchronism with the forming rollers.
  • thermoplastics include homopolymeric polystyrene resinous mixtures, copolymers of styrene, acrylic polymers, homopolymers of vinyl chloride, polyolefins, polyamides, straight chain polyurethanes, straight chain polyesters, polycarbonates, polyethers, vinyl ethers, and vinyl esters.
  • blowing agents include chemical blowing agents such as organic or inorganic bicarbonates or oxalates, azo-chemicals, hydrazides, and amine nitrates. Also, low boiling liquids which can produce gas by vaporization under low pressure conditions can be used. Examples of these blowing agents include carbon dioxide and aliphatic hydrocarbons.
  • the temperature in the first and second extruders 12 and 18 is maintained within a range of from 50° C. to 260° C., depending on the particular type of thermoplastic material and blowing agent utilized.
  • the amount of blowing agent which is added to the core thermoplastic material is dependent on the desired reduction in specific gravity of the thermoplastic material and is thus a function of the specific gravity of the finished product. It has been found that, when the blowing agent and the thermoplastic material are first blended together and then pelletized to produce a homogeneous mixture, better control of the foaming operation is achieved.
  • An example of a product which can be produced by way of the above described process and apparatus is an automobile body side molding and utilizes a foamable thermoplastic core material consisting of a polyvinylchloride base compound and an azodicarbonamide blowing agent.
  • the desired specific gravity of the finished product can be achieved by a reduction of thirty percent in specific gravity of the polyvinylchloride base compound by utilizing six-tenths of one percent by weight of blowing agent in the polyvinylchloride base compound.
  • the die outlet 18a of the second extruder 18 is positioned to apply the film of non-porous thermoplastic material 20 at a thickness corresponding to the desired thickness of the skin 24b.
  • the thickness of the skin 24b is in the range of from 0.3 to 1.0 mm.
  • the distance between the extrusion dies 14 and 18a, and the forming die 22 is such as to maintain the desired temperatures associated with the process within acceptable limits.
  • the temperatures of both of the extruders 12 and 18 are controlled such that the temperature at which the materials 13 and 20 are extruded from their respective dies is approximately 182° C.
  • the distance between the extruder die 14 and the forming die 22 should not exceed a distance which permits the temperature of the materials 13 and 20 entering the forming die 22 to drop below approximately 132° C.
  • the distance between the extruder die 14 and the forming die 22 should not exceed nine inches.
  • the line speed at which the belts 30 pull the product 24 can vary depending on the parameters of the system.
  • the cooling means 26 maintains the temperature of both the top an bottom forming rolls 22a and 22b of the forming die 22 between 26° C. and 54° C.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
US06/531,415 1983-09-12 1983-09-12 Method of extruding a foamed thermoplastic core and extruding and integrally sealing a non-porous skin thereon Expired - Lifetime US4600461A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
US06/531,415 US4600461A (en) 1983-09-12 1983-09-12 Method of extruding a foamed thermoplastic core and extruding and integrally sealing a non-porous skin thereon
CA000461957A CA1231213A (en) 1983-09-12 1984-08-28 Method and apparatus for extruding a foamed thermoplastic material having an integral non-porous skin, and resulting product
AU32500/84A AU577799B2 (en) 1983-09-12 1984-08-29 Extruded moulding strip
GB08421825A GB2146941B (en) 1983-09-12 1984-08-29 Extruded foamed plastics, with outer non-porous skin
DE19843432959 DE3432959A1 (de) 1983-09-12 1984-09-06 Verfahren und vorrichtung zur herstellung eines durch extrusion erhaltenen, eine vorbestimmte querschnittsform aufweisenden kunststoff-formkoerpers aus einem mit einer nicht poroesen, integralen haut ausgestatteten zellenfoermigen kern und nach dem verfahren und der vorrichtung hergestellter formkoerper
JP59190457A JPS6089341A (ja) 1983-09-12 1984-09-10 押出し成形プラスチック製品の製造方法及び装置
ES535805A ES8600116A1 (es) 1983-09-12 1984-09-11 Metodo y aparato para producir un producto de material plastico extruido con una forma transversal predeterminada
FR848413912A FR2551694B1 (ja) 1983-09-12 1984-09-11
KR1019840005549A KR920003061B1 (ko) 1983-09-12 1984-09-12 가소성 물질의 제조방법
US06/884,101 US4808450A (en) 1983-09-12 1986-07-10 Side body molding for attachment to a vehicle body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/531,415 US4600461A (en) 1983-09-12 1983-09-12 Method of extruding a foamed thermoplastic core and extruding and integrally sealing a non-porous skin thereon

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US06/884,101 Division US4808450A (en) 1983-09-12 1986-07-10 Side body molding for attachment to a vehicle body

Publications (1)

Publication Number Publication Date
US4600461A true US4600461A (en) 1986-07-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
US06/531,415 Expired - Lifetime US4600461A (en) 1983-09-12 1983-09-12 Method of extruding a foamed thermoplastic core and extruding and integrally sealing a non-porous skin thereon

Country Status (9)

Country Link
US (1) US4600461A (ja)
JP (1) JPS6089341A (ja)
KR (1) KR920003061B1 (ja)
AU (1) AU577799B2 (ja)
CA (1) CA1231213A (ja)
DE (1) DE3432959A1 (ja)
ES (1) ES8600116A1 (ja)
FR (1) FR2551694B1 (ja)
GB (1) GB2146941B (ja)

Cited By (36)

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WO1989001399A1 (en) * 1987-08-11 1989-02-23 Turngren Christina M Foam braced packaging and method and apparatus for constructing same
US4808450A (en) * 1983-09-12 1989-02-28 Sterling Engineered Products Inc. Side body molding for attachment to a vehicle body
US5137675A (en) * 1991-05-13 1992-08-11 Gencorp Inc. Apparatus and method for coextruding materials having different temperature dependent properties
US5183613A (en) * 1990-08-22 1993-02-02 Gencorp Inc. Process for the preparation of solventless, low friction, abrasion-resistant coatings for elastomeric substrates
US5226998A (en) * 1991-12-02 1993-07-13 Plastic Trim, Inc. Process for making a vehicle molding
US5273900A (en) * 1987-04-28 1993-12-28 The Regents Of The University Of California Method and apparatus for preparing composite skin replacement
US5273698A (en) * 1992-05-28 1993-12-28 Creme Art Corporation Method for shaping cover materials
US5296182A (en) * 1992-05-28 1994-03-22 Creme Art Corporation Method for making formed laminate
US5311814A (en) * 1993-06-28 1994-05-17 Jacob Kierson Assembly for embossing a pattern on surfaces of a slat used in a vertical blind assembly
US5393536A (en) * 1993-04-05 1995-02-28 Crane Plastics Company Coextrusion apparatus
US5419863A (en) * 1992-03-06 1995-05-30 The Standard Products Company Method of making a seamless backfilled molding
US5456957A (en) * 1992-03-06 1995-10-10 The Standard Products Company Body side molding and method
US5508103A (en) * 1995-01-30 1996-04-16 Marley Mouldings Inc. Extrusion product with decorative enhancement and process of making the same
US5593524A (en) * 1994-11-14 1997-01-14 Philips; Peter A. Electrical cable reinforced with a longitudinally applied tape
US5783125A (en) * 1993-04-05 1998-07-21 Crane Plastics Company Limited Partnership Reinforced extrusion products and method of making same
US5795641A (en) * 1993-09-01 1998-08-18 Marley Mouldings Inc. Method and die for forming triple extruded profiles
US5882564A (en) * 1996-06-24 1999-03-16 Andersen Corporation Resin and wood fiber composite profile extrusion method
US6139945A (en) * 1997-11-25 2000-10-31 Premark Rwp Holdings, Inc. Polymeric foam substrate and its use as in combination with decorative surfaces
US6167657B1 (en) 1996-11-21 2001-01-02 Marley Mouldings, Inc. Weatherstrip product formed by sequential extrusion of cellular and non-cellular plastic resins
US6214266B1 (en) 1999-04-06 2001-04-10 Green Tokai Co., Ltd. Method for injection molding plastic parts
AU733392B2 (en) * 1999-04-07 2001-05-10 Premark Rwp Holdings, Inc. Lamination of two layers to form solid surface laminate
WO2001089832A2 (en) * 2000-05-23 2001-11-29 Berol Corporation Writing instrument and method of making same
US20030060110A1 (en) * 1999-12-24 2003-03-27 Desai Dilipkumar R. Expanded extruded polymeric textile
US6544448B2 (en) * 1996-04-17 2003-04-08 Industrial Thermo Polymers Limited Two-part coated foam structure
US6592789B2 (en) 2001-05-18 2003-07-15 James B. Barsby Apparatus and methods for mixing and injecting a foam core within an extruded shell
US7449517B1 (en) 2003-06-21 2008-11-11 James Rock Associates, Llc Composite building material
WO2009022022A1 (es) * 2007-07-27 2009-02-19 Ulma C Y E, S. Coop. Procedimiento e instalación para la producción de paneles tipo sándwich de naturaleza polimérica y panel obtenido
US20100038037A1 (en) * 2008-08-13 2010-02-18 Dana Ray Hanson Apparatus for applying a film to a bottom side of an extruded sheet
US20100112335A1 (en) * 2007-04-10 2010-05-06 Du Pont-Mitsui Polychemicals Co., Ltd Laminated film or sheet having a foamed resin layer and process for producing the same
US20100179006A1 (en) * 2007-06-12 2010-07-15 Felipe Mora Vera Anti-Injury Sports Goals With Standardized Rebound
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WO2011062632A1 (en) * 2009-11-21 2011-05-26 Mikron Industries, Inc. Integrated insulation extrusion and extrusion technology for window and door systems
US20110120034A1 (en) * 2009-11-21 2011-05-26 George Melkonian Integrated insulation extrusion and extrusion technology for window and door systems
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RU2559246C2 (ru) * 2009-11-21 2015-08-10 Микрон Индастриз, Инк. Экструдат, имеющий в составе пеноизоляцию, и способ экструзии для оконных и дверных систем
US10035289B2 (en) 2014-06-04 2018-07-31 Mitsubishi Gas Chemical Company, Inc. Manufacturing apparatus for film of non-uniform thickness and manufacturing method for film of non-uniform thickness
CN104552968A (zh) * 2015-02-06 2015-04-29 姜维雁 发泡板材的制造系统及制造方法
CN104552968B (zh) * 2015-02-06 2018-01-30 姜维雁 发泡板材的制造系统及制造方法
US11760426B2 (en) 2020-10-22 2023-09-19 Transtex Inc. Ribbed aerodynamic skirt panel and assembly thereof

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FR2551694B1 (ja) 1989-05-19
DE3432959A1 (de) 1985-03-28
AU3250084A (en) 1985-03-21
GB2146941B (en) 1987-08-19
ES535805A0 (es) 1985-10-16
AU577799B2 (en) 1988-10-06
FR2551694A1 (ja) 1985-03-15
ES8600116A1 (es) 1985-10-16
JPH0447615B2 (ja) 1992-08-04
KR850002414A (ko) 1985-05-13
GB2146941A (en) 1985-05-01
JPS6089341A (ja) 1985-05-20
KR920003061B1 (ko) 1992-04-13
CA1231213A (en) 1988-01-12

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